(0.7n+0.2n)+0.8=-2.8

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Solution for (0.7n+0.2n)+0.8=-2.8 equation: 


Simplifying
(0.7n + 0.2n) + 0.8 = -2.8

Combine like terms: 0.7n + 0.2n = 0.9n
(0.9n) + 0.8 = -2.8
(0.9n) + 0.8 = -2.8

Reorder the terms:
0.8 + (0.9n) = -2.8

Solving
0.8 + (0.9n) = -2.8

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '-0.8' to each side of the equation.
0.8 + -0.8 + (0.9n) = -2.8 + -0.8

Combine like terms: 0.8 + -0.8 = 0.0
0.0 + (0.9n) = -2.8 + -0.8
(0.9n) = -2.8 + -0.8

Combine like terms: -2.8 + -0.8 = -3.6
(0.9n) = -3.6

Divide each side by '0.9'.
n = -4

Simplifying
n = -4

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